:root {
  --paper: #f7fbfb;
  --paper-soft: #eef7f6;
  --ink: #13252d;
  --muted: #64777d;
  --line: #c9dde0;
  --brand: #087f8c;
  --deep: #07384a;
  --sand: #f2dfc8;
  --coral: #d98262;
  --shadow: 0 22px 60px rgba(7, 56, 74, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
}
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 30;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(5, 33, 45, .72), rgba(5, 33, 45, .06));
  transition: background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled {
  background: rgba(247, 251, 251, .94);
  box-shadow: 0 12px 34px rgba(7, 56, 74, .1);
  backdrop-filter: blur(16px);
}
.brand {
  width: 86px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 999px;
  color: white;
  background: rgba(255,255,255,.08);
}
.site-header.is-scrolled .brand,
body:not(.at-hero) .brand {
  color: var(--deep);
  border-color: rgba(8,127,140,.36);
  background: rgba(8,127,140,.08);
}
.brand::before, .brand::after { display: none; }
.brand-mark {
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
  transform: none;
}
.site-nav {
  display: flex;
  gap: clamp(24px, 4vw, 54px);
  align-items: center;
  font-weight: 800;
  font-size: 15px;
  color: white;
}
.site-header.is-scrolled .site-nav,
body:not(.at-hero) .site-nav { color: var(--ink); }
.site-nav a { padding: 10px 0; }
.site-nav a:hover { color: var(--coral); }
.reserve-link span { color: var(--coral); }
.nav-toggle { display: none; }

.hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--deep);
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -18% -10%;
  height: 44vh;
  z-index: 3;
  background: radial-gradient(70% 90% at 50% 0%, rgba(39, 181, 195, .72), rgba(8, 127, 140, .18) 62%, transparent 63%);
  border-radius: 50% 50% 0 0;
  pointer-events: none;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.035);
  transition: opacity .8s ease, transform 5s ease;
  background-image: linear-gradient(90deg, rgba(3, 30, 42, .62), rgba(3, 30, 42, .18) 52%, rgba(4, 59, 72, .16)), var(--image), linear-gradient(135deg, #0c6170, #e9d2b7 48%, #7ec7cc);
  background-size: cover;
  background-position: center;
}
.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 48%, rgba(6, 62, 82, .44) 76%, rgba(6, 62, 82, .78));
}
.hero-slide.is-active { opacity: 1; transform: scale(1); }
.hero-copy {
  position: absolute;
  z-index: 4;
  left: clamp(28px, 8vw, 132px);
  bottom: clamp(128px, 20vh, 230px);
  color: white;
  text-shadow: 0 12px 32px rgba(0,0,0,.28);
}
.hero-copy p { margin: 0 0 16px; font-size: 15px; font-weight: 900; color: #b8edf0; text-transform: uppercase; }
.hero-copy h1 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(42px, 7vw, 94px); line-height: 1.08; font-weight: 400; }
.hero-control {
  position: absolute;
  z-index: 5;
  right: clamp(20px, 4vw, 54px);
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: white;
  font-size: 30px;
}
.hero-control button { border: 0; background: transparent; color: inherit; cursor: pointer; min-width: 34px; height: 42px; }
.hero-pause { font-size: 13px; font-weight: 900; }

section { scroll-margin-top: 96px; }
.intro-panel {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  width: min(1500px, calc(100% - 9vw));
  margin: 92px auto 0;
  min-height: 680px;
  box-shadow: var(--shadow);
  border-radius: 8px;
  overflow: hidden;
  background: white;
}
.intro-photo, .intro-message, .wide-photo, .photo-card {
  background-image: var(--image), linear-gradient(135deg, #dff5f6, #f0ddc4 52%, #0f8e9b);
  background-size: cover;
  background-position: center;
}
.intro-message {
  display: grid;
  place-items: center;
  position: relative;
  isolation: isolate;
}
.intro-message::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 44, 58, .58);
  backdrop-filter: blur(5px);
  z-index: -1;
}
.message-box {
  width: min(78%, 620px);
  min-height: 430px;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 54px 38px;
  background: rgba(7, 56, 74, .72);
  color: white;
  text-align: center;
  line-height: 2.15;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 8px;
}
.mini-mark {
  min-width: 62px;
  height: 34px;
  padding: 0 12px;
  border: 1px solid currentColor;
  display: grid;
  place-items: center;
  margin-bottom: 26px;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.story-section { min-height: 600px; display: grid; place-items: center; position: relative; padding: 120px 24px; }
.section-text { max-width: 800px; color: #365963; line-height: 2.12; font-weight: 600; }
.centered { text-align: center; }
h2 { margin: 0 0 28px; font-family: Georgia, "Times New Roman", "Noto Serif KR", serif; font-size: clamp(24px, 3vw, 34px); font-weight: 400; color: var(--deep); }
.section-text h2::after { content: ""; display: block; width: 88px; height: 2px; background: var(--coral); margin: 26px auto; }
.photo-note { position: absolute; right: 5vw; bottom: 42px; color: var(--muted); font-size: 13px; }

.gallery-grid {
  width: min(1580px, calc(100% - 8vw));
  margin: 0 auto 140px;
  display: grid;
  grid-template-columns: 1.18fr .96fr .96fr;
  gap: clamp(20px, 2.6vw, 42px);
}
.photo-card {
  border: 0;
  display: block;
  min-height: 430px;
  cursor: zoom-in;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 16px 42px rgba(7, 56, 74, .09);
}
.photo-card::after {
  content: attr(data-title);
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: white;
  font-weight: 900;
  opacity: 0;
  transform: translateY(8px);
  transition: .25s ease;
  text-shadow: 0 4px 18px rgba(0,0,0,.42);
}
.photo-card:hover::after { opacity: 1; transform: translateY(0); }
.photo-card.tall { min-height: 620px; }

.feature-section { padding: 124px 7vw; background: linear-gradient(180deg, var(--paper-soft), #fdf8f1); color: var(--deep); }
.section-kicker { color: var(--brand); font-weight: 900; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.feature-section p { max-width: 660px; line-height: 2; color: var(--muted); font-weight: 600; }
.wide-photo { margin-top: 50px; min-height: 500px; border-radius: 8px; box-shadow: var(--shadow); }

.guide-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; padding: 124px 7vw; background: white; }
.guide-copy p { color: var(--muted); line-height: 1.9; font-weight: 600; }
.guide-list { margin: 0; border-top: 1px solid var(--line); }
.guide-list div { display: grid; grid-template-columns: 130px 1fr; gap: 30px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.guide-list dt { font-weight: 900; color: var(--brand); }
.guide-list dd { margin: 0; color: var(--deep); }

.reservation-section { padding: 118px 7vw 140px; background: #eaf6f7; }
.reservation-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 34px; }
.reservation-head p { margin: 0; color: var(--muted); font-weight: 600; }
.calendar-toolbar { display: flex; justify-content: center; align-items: center; gap: 22px; margin-bottom: 24px; }
.calendar-toolbar button { width: 42px; height: 42px; border: 1px solid var(--line); background: white; cursor: pointer; font-size: 26px; color: var(--brand); border-radius: 8px; }
.month-label { min-width: 150px; text-align: center; font-size: 20px; color: var(--deep); }
.calendar-weekdays, .calendar { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); max-width: 980px; margin: 0 auto; }
.calendar-weekdays span { text-align: center; padding: 12px 0; color: var(--muted); font-weight: 900; }
.day { min-height: 100px; border: 1px solid #cce2e4; background: rgba(255,255,255,.72); padding: 12px; display: flex; flex-direction: column; justify-content: space-between; }
.day.is-empty { background: transparent; border-color: transparent; }
.day-number { font-weight: 900; }
.day-status { align-self: flex-start; padding: 6px 9px; font-size: 12px; font-weight: 900; color: white; background: var(--brand); border-radius: 6px; }
.day.closed .day-status { background: #66777c; }
.day.past { opacity: .45; }
.legend { max-width: 980px; margin: 22px auto 0; display: flex; justify-content: flex-end; gap: 24px; color: var(--muted); font-size: 14px; }
.dot { width: 10px; height: 10px; display: inline-block; margin-right: 8px; vertical-align: middle; background: var(--brand); border-radius: 50%; }
.dot.closed { background: #66777c; }

.site-footer { padding: 78px 7vw 54px; display: flex; justify-content: space-between; gap: 40px; line-height: 1.8; background: #092f3f; color: white; }
.site-footer p { margin: 6px 0; color: rgba(255,255,255,.72); }
.footer-links { display: flex; align-items: end; gap: 20px; color: rgba(255,255,255,.78); }

.lightbox { width: min(1100px, calc(100% - 36px)); border: 0; padding: 0; background: transparent; }
.lightbox::backdrop { background: rgba(4, 28, 38, .78); }
.lightbox-image { min-height: 70vh; background-image: var(--image); background-size: contain; background-position: center; background-repeat: no-repeat; }
.lightbox-close { position: fixed; right: 24px; top: 18px; width: 44px; height: 44px; border: 0; background: white; color: var(--ink); font-size: 30px; cursor: pointer; border-radius: 8px; }
.lightbox-title { text-align: center; color: white; font-weight: 900; }

@media (max-width: 900px) {
  .site-header { height: 76px; padding: 14px 18px; }
  .brand { width: 76px; height: 46px; }
  .brand-mark { font-size: 14px; }
  .nav-toggle { display: grid; gap: 5px; width: 42px; height: 42px; border: 0; background: rgba(255,255,255,.84); padding: 11px; border-radius: 8px; }
  .nav-toggle span { height: 2px; background: var(--ink); }
  .site-nav { position: fixed; top: 76px; left: 0; right: 0; display: none; flex-direction: column; gap: 0; align-items: stretch; background: rgba(247,251,251,.98); color: var(--ink); padding: 14px 22px 22px; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .hero-copy { left: 24px; right: 24px; bottom: 130px; }
  .hero-control { font-size: 24px; gap: 10px; }
  .intro-panel, .guide-section { grid-template-columns: 1fr; }
  .intro-panel { width: calc(100% - 32px); margin-top: 56px; min-height: auto; }
  .intro-photo { min-height: 420px; }
  .message-box { width: 86%; min-height: 340px; padding: 38px 24px; }
  .gallery-grid { grid-template-columns: 1fr; width: calc(100% - 32px); margin-bottom: 80px; }
  .photo-card, .photo-card.tall { min-height: 420px; }
  .reservation-head, .site-footer { flex-direction: column; align-items: flex-start; }
  .calendar-weekdays, .calendar { max-width: 100%; }
  .day { min-height: 78px; padding: 8px; }
  .day-status { font-size: 11px; padding: 5px 6px; }
}

@media (max-width: 560px) {
  .hero-copy h1 { font-size: 37px; }
  .story-section, .feature-section, .guide-section, .reservation-section { padding-left: 20px; padding-right: 20px; }
  .calendar-weekdays span { font-size: 12px; }
  .day { min-height: 66px; }
  .day-status { font-size: 10px; }
}